素描的认识功能杨广生可以这样说，大多数学画者都是从学素描开始的。作为一切造型艺术的基础，素描一直起着关键作用。同时它自身又是一种独立的艺术形态，具有很强的表现力。大概在人类具有思维能力、能够用泥巴枝条或石块进行有目的的意识活动时，素描便出现了。最早的... Sketch of cognitive function Yang Guangsheng can say that most of the learners are from the sketch began. As the basis of all plastic arts, sketches have always played a key role. At the same time, it is an independent art form itself, which is very expressive. Probably the sketch appears when humans have the ability to think and can carry out purposeful awareness activities with mud sticks or rocks. The earliest...